对我国台湾强震的预警时间研究

A study on the early warning time of the strong earthquakes in Taiwan

摘要:

本文收集了福建测震台网记录的台湾5.0级以上强震，通过分析震相特征，研究震相的走时规律，进而确定走时模型，采用两步法拟合得出台湾地震震相走时方程，扣除处理用时与网络延时，实现了福建地区对我国台湾地震的预警时间的准确估计，并已被福建省地震预警系统正式采用。

Abstract:

The paper collects the records by the Fujian Digital Seismic Network of 40 Taiwan shallow earthquakes with MS≥5.0 from 1999 to 2013，analyzes the seismic phase(Pn，Sn phase)characteristics and travel-time rules，determines travel-time models and develops a seismic phase travel-time equation by two process fitting. With the deduction of processing time and network delay time，the method can provide an accurate estimation of early warning time of Taiwan earthquakes for the Fujian region，and has been officially employed in the earthquake early warning system of Fujian Province.